Rechargeable & Auto Sleep Function : Built-in high quality rechargeable battery means you can recharge whenever you want. When you leave your mouse more than 5 minutes, it will automatically get into sleep mode which saves electricity of the mouse, and click any button for waking up the mouse again (P.S. Please recharge for 1 hour when the mouse is new before use). Easy to Use: Stable connection up to 10-meter working distance. The simple USB cordless mouse, just plug and play, very easy to use. Quiet Clicking & ScrollingSilent clicking laptop mouse for left and right button fits the circumstance for using the mouse in public, such as library, dormitory, office and so on, and apart from blue light indication during recharging and light off after full recharge, this design results worry-free for disturbing others Ergonomic Design Comfortable Ergonomic claw grip design, no fatigue after long-term work and study.A unique look shows off your unique style. Aluminum alloy base The aluminum alloy base is scratch-resistant and has a good feel.